A bolt strength coefficient detection device

Abstract

The application relates to the technical field of strength characteristic detection, and discloses a bolt strength coefficient detection equipment which comprises a tensile testing machine, the tensile testing machine comprises a pair of upper clamping bodies and lower clamping bodies which are matched in position; the equipment further comprises a tension component, an extension component and a connecting component; wherein the tension component controls the extension component; thus, the splashed detection samples and the broken sample bolts can be comprehensively intercepted to avoid splashing on the tensile testing machine, the intercepted detection samples can be automatically collected, the collected detection samples can be automatically unlocked for the convenience of the staff to clean away the collected detection samples, the tensile testing machine can not only protect the safety of the staff, but also protect itself to prolong the service life, and the equipment has multiple functions, a simple structure and is practical.

Description

Technical Field

[0001] This invention relates to the field of strength characteristic testing technology, specifically to a bolt strength coefficient testing device. Background Technology

[0002] Bolt strength coefficient mainly refers to the mechanical performance index of bolt material determined or verified by test, and to evaluate its load-bearing capacity under actual working conditions. Mechanical performance index includes, but is not limited to, tensile strength, yield strength or hardness. Among them, bolt tensile strength test refers to the determination of the maximum load-bearing capacity of bolt under axial tension through tensile test.

[0003] Current bolt tensile strength testing is generally performed using a tensile testing machine. This machine typically consists of a main body, a tensile component, a pair of matching clamps, and a mesh screen mounted on the main body. Before the tensile test, the matching clamps are placed in their corresponding positions within the tensile component. The bolt, fitted with a tensile washer and a tension block, is then placed between the clamps, and a stable force is applied to perform the tensile strength test. Tensile strength testing is usually destructive; during the test, bolt breakage can cause localized sample splattering, posing a safety hazard to workers and impacting the tensile testing machine. If the splatter enters the precision moving parts of the machine (such as ball screws and guide rails), it can accelerate wear and affect the long-term accuracy and lifespan of the equipment. While existing tensile testing machines can intercept the splattering sample from the moment of bolt breakage, this only provides frontal protection for personnel, and the problem of sample splattering in all directions still exists. Furthermore, their functionality is limited. Summary of the Invention

[0004] The purpose of this invention is to provide a bolt strength coefficient testing device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0006] Embodiments of the present invention provide a bolt strength coefficient testing device, the device comprising a tensile testing machine, the tensile testing machine comprising a pair of upper clamping parts and a lower clamping part that are matched in position; the device further comprises:

[0007] The tensile component, mounted on the upper clamp, is used to convert the tensile strength testing force of the tensile testing machine into an interception driving force;

[0008] The telescopic component, mounted on the lower clamping body, is used for real-time interception and automatic collection of tensile fracture test specimens;

[0009] Connecting components, located on the tensile and telescopic components, are used to provide a closing force for the closed environment of bolt tensile testing;

[0010] The tension component controls the telescopic component.

[0011] Furthermore, the tension component includes:

[0012] A tension positioning ring with damping is slidably mounted on the upper clamping body;

[0013] Push the first protrusion, two sets are set, and fixedly set on the outer wall of the tension positioning ring;

[0014] The connecting component is located at the bottom of the tension positioning ring and on the telescopic component; the frictional force between the tension positioning ring and the upper clamping body is greater than the sum of the weights of the tension positioning ring and the pushing protrusion.

[0015] Furthermore, the telescopic component includes:

[0016] An annular positioning seat is fixedly mounted on the outer wall of the lower clamping body;

[0017] The first clearance groove is provided on the annular positioning seat and is connected to the opening of the lower clamping body, and is used for the placement and removal of the sample bolt.

[0018] An incomplete annular clearance groove is formed on the annular positioning seat and extends through the top of the annular positioning seat;

[0019] An annular clearance groove is formed at the bottom of the annular positioning seat and is interconnected with the first clearance groove and the incomplete annular clearance groove.

[0020] The interception module is slidably positioned within a partially annular clearance groove.

[0021] The collection module is detachably installed inside the annular clearance groove;

[0022] The gear module has two sets, both of which are damped and slidably mounted on the outer wall of the annular positioning seat. They are used to block the first clearance groove while providing a supplementary interception surface for the interception module.

[0023] The connecting component is located at the bottom of the tension positioning ring, on the interception module and the gear module; the interception module controls the collection module.

[0024] Furthermore, the interception module includes:

[0025] An incompletely annular plate with damping is slidably mounted on the inner wall of an incompletely annular clearance groove.

[0026] An incomplete ring frame is fixedly mounted on an incomplete ring plate facing the lower clamping body, with the top inner diameter being smaller than the bottom inner diameter;

[0027] The first interception buffer is detachably mounted on the incomplete ring frame and has an inverted V-shaped cross-section, used to intercept splashed test samples;

[0028] The vibration interception unit is located between the incomplete annular clearance groove and the incomplete annular plate, and is used to actuate the first interception buffer component.

[0029] The connecting component is located at the bottom of the tension positioning ring, the top of the incomplete annular plate, and the stop module; the incomplete annular plate controls the collection module.

[0030] Furthermore, the vibration interception unit includes:

[0031] The first protrusion is evenly distributed on the inner wall of the incomplete annular clearance groove;

[0032] Vibration drive rods are evenly distributed on an incomplete annular plate, and each rod is elastically slidably set on the incomplete annular plate.

[0033] The first protrusions are all located on the movement trajectory of the vibration drive rod; the side of the first protrusion facing the vibration drive rod is arc-shaped; the length of the vibration drive rod on the incomplete annular plate is arranged in a stepped manner from top to bottom.

[0034] When there is no interaction force between the first protrusion and the vibration drive rod, the vibration drive rod and the intercepting buffer are both in a state of contact without interaction force.

[0035] Furthermore, the collection module includes:

[0036] The annular collection box is slidingly mounted in the annular clearance groove with damping.

[0037] The locking unit, with at least two sets, is located between the side wall of the annular positioning seat and the incomplete annular plate, for automatic locking and unlocking of the annular collection box;

[0038] When the incomplete annular plate is completely located within the incomplete annular clearance groove, the outer wall of the incomplete annular plate and the inner wall of the outer wall of the annular collection box are in a sliding fit, and the bottom of the incomplete annular plate is in contact with the inner wall of the annular collection box.

[0039] Furthermore, the engaging unit includes:

[0040] The snap-fit ​​mounting tube is fixedly installed on the outer wall of the annular positioning seat;

[0041] The engagement clearance hole is opened on the outer wall of the annular positioning seat and corresponds to the engagement mounting tube;

[0042] The engaging holes, corresponding to the engaging avoidance holes, are provided on the outer wall of the annular collection box;

[0043] The engaging guide plate, with damping, is slidably mounted inside the engaging mounting tube;

[0044] The connecting rod is fixedly mounted on the engaging guide plate;

[0045] The locking ball is fixedly mounted on the connecting rod and slidably mounted in the locking clearance hole;

[0046] A reset spring is located between the engagement guide plate and the inner wall of the engagement mounting tube.

[0047] The engaging clearance hole and the annular clearance groove are interconnected.

[0048] When the annular collection box is placed in the annular clearance groove, and the bottom of the incomplete annular plate is in contact with the inner wall of the annular collection box, the locking clearance hole and the locking hole are located on the same axis as the locking ball. The locking ball has an interaction force with the outer wall of the incomplete annular plate. The return spring is in a compressed state. The maximum distance between the locking hole and the side wall of the incomplete annular plate is less than the distance between the center of the locking ball and the side wall of the incomplete annular plate.

[0049] When the annular collection box is placed in the annular clearance groove and the incomplete annular plate and the annular collection box are not in contact with each other, the locking clearance hole and the locking hole are located on the same axis as the locking ball. There is no interaction force between the locking ball and the outer wall of the incomplete annular plate. The return spring is in its natural state. The minimum distance between the locking hole and the side wall of the incomplete annular plate is greater than the distance between the center of the locking ball and the side wall of the incomplete annular plate.

[0050] Furthermore, the gear shift module includes:

[0051] An arc-shaped stop seat with damping is slidably mounted on the outer wall of an annular positioning seat;

[0052] An arc-shaped groove is formed on the arc-shaped stop seat;

[0053] The stop arc plate, with damping, is slidably set in the arc groove;

[0054] A stop arc-shaped bracket is fixedly mounted on the stop arc-shaped plate facing the annular positioning seat;

[0055] The second interceptor buffer is detachably mounted on the arc-shaped baffle frame. It is used to shield the first clearance groove while providing a supplementary interception surface for the splash test sample.

[0056] The gear vibration unit is set between the arc groove and the gear arc plate and is used to actuate the second interception buffer;

[0057] The connecting component is located at the bottom of the tension positioning ring, the top of the incomplete annular plate, and the top of the stop arc plate; the outer diameter of the tension positioning ring is greater than or equal to the outer diameter of the stop arc plate.

[0058] Furthermore, the gear vibration unit includes:

[0059] The second protrusion is evenly distributed on the inner wall of the arc-shaped groove on the side away from the second interceptor buffer;

[0060] Several vibrating telescopic rods are evenly distributed on the stop arc plate, and each rod is elastically slidably set on the stop arc plate.

[0061] The second protrusions are all located on the moving trajectory of the vibrating telescopic rod; the side of the second protrusion facing the vibrating telescopic rod is curved.

[0062] When there is no interaction force between the second protrusion and the vibration telescopic rod, the vibration telescopic rod and the second intercepting buffer are both in a state of contact without interaction force.

[0063] The above-described solution of the present invention has at least the following beneficial effects:

[0064] 1. The telescopic component blocks the opening of the lower clamping body, and the tension component is controlled to act on the telescopic component. The tension component blocks the opening of the upper clamping body. At the same time, under the action of the connecting component, the tension component and the telescopic component provide a closed environment for bolt tensile testing, thereby preventing the test sample from flying everywhere at the moment of bolt tensile fracture. The flying test sample is confined to the space area enclosed by the upper and lower clamping bodies, the tension component and the telescopic component. This solves the safety hazard problem for the staff and avoids affecting the precision moving parts of the tensile testing machine, thus preventing accelerated wear and affecting the long-term accuracy and lifespan of the equipment.

[0065] 2. During the tensile testing of bolt specimens in the tensile testing machine, the tensile component converts the tensile strength testing force of the tensile testing machine into an interception driving force. Under the action of the closing force provided by the connecting component, the tensile component controls the telescopic component to move synchronously along the axial direction of the bolt, thereby obtaining a closed environment for bolt tensile testing. The telescopic component performs real-time interception of the tensile fracture test specimen, especially the test specimen that is splashed at the moment of bolt fracture.

[0066] 3. After the tensile test of the sample bolts is completed, the staff controls the connection parts to unlock and drive the telescopic parts to reset. During this process, the telescopic parts automatically control the collection and unlocking of the intercepted test samples. This not only intercepts the splashed test samples and broken sample bolts from all directions to prevent them from splashing onto the tensile testing machine, but also automatically collects the intercepted test samples and automatically unlocks the collection limit to facilitate the staff to clean up the collected test samples. As a result, the tensile testing machine not only protects the safety of the personnel, but also protects itself and extends its service life. It is multifunctional, simple in structure, and practical. Attached Figure Description

[0067] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a bolt strength coefficient testing device provided in an embodiment of the present invention;

[0068] Figure 2 This is a three-dimensional structural diagram of the combination of the tension component and the telescopic component in an embodiment of the present invention;

[0069] Figure 3 This is a three-dimensional structural diagram of the tension positioning ring in an embodiment of the present invention;

[0070] Figure 4 This is a three-dimensional structural diagram of the telescopic component in an embodiment of the present invention;

[0071] Figure 5 This is a three-dimensional structural diagram of the annular positioning seat in an embodiment of the present invention. Figure 1 ;

[0072] Figure 6 This is a three-dimensional structural diagram of the annular positioning seat in an embodiment of the present invention. Figure 2 ;

[0073] Figure 7 This is a three-dimensional structural diagram of the combination of the annular positioning seat and the annular collection box in an embodiment of the present invention;

[0074] Figure 8 This is a three-dimensional structural diagram of the engaging unit in an embodiment of the present invention;

[0075] Figure 9 This is a three-dimensional structural diagram of the vibration interception unit in an embodiment of the present invention;

[0076] Figure 10 This is a three-dimensional structural diagram of the annular collection box in an embodiment of the present invention;

[0077] Figure 11 This is a three-dimensional structural diagram of the gear vibration unit in an embodiment of the present invention;

[0078] Figure 12This is a three-dimensional structural diagram of the arc-shaped stop seat in an embodiment of the present invention.

[0079] Explanation of reference numerals in the attached figures:

[0080] In the diagram: 1. Tensile testing machine; 2. Upper clamping body; 3. Lower clamping body; 4. Tensile positioning ring; 5. Pushing protrusion one; 6. Annular positioning seat; 7. First clearance groove; 8. Incomplete annular clearance groove; 9. Annular clearance groove; 10. Incomplete annular plate; 11. Incomplete annular frame; 12. Interception buffer one; 13. First protrusion; 14. Vibration drive rod; 15. Annular collection box; 16. Positioning block; 17. Pick-up and drop handle 18. Hand; 19. Engaging mounting tube; 20. Engaging clearance hole; 21. Engaging guide plate; 22. Engaging ball; 23. Engaging hole; 24. Return spring; 25. Arc-shaped stop seat; 26. Arc-shaped guide block; 27. Arc-shaped stop plate; 28. Arc-shaped stop frame; 29. ​​Second intercepting buffer component; 30. Second protrusion; 31. Vibration telescopic rod; 32. Pull-down protrusion; 33. Upper magnetic suction plate; 34. Lower magnetic suction plate. Detailed Implementation

[0081] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0082] like Figures 1 to 12 As shown, a bolt strength coefficient testing device includes a tensile testing machine 1, which comprises a pair of upper clamping bodies 2 and lower clamping bodies 3 that are matched in position; the device also includes:

[0083] The tensile component, mounted on the upper clamping body 2, is used to convert the tensile strength testing force of the tensile testing machine 1 into an interception driving force;

[0084] The telescopic component, mounted on the lower clamping body 3, is used for real-time interception and automatic collection of tensile fracture test specimens;

[0085] Connecting components, located on the tensile and telescopic components, are used to provide a closing force for the closed environment of bolt tensile testing;

[0086] The tension component controls the telescopic component.

[0087] It should be noted that the tensile testing machines 1 in this embodiment are all existing products in the prior art. The tensile testing machines 1 mentioned in this embodiment are all existing matching products selected from the market according to the usage needs and installation space requirements. We only use them and do not improve them. These products are all equipped with corresponding instruction manuals and technical support. Therefore, in this embodiment, we only need to complete the assembly according to the instruction manual and technical support before using them. The structural diagram of the tensile testing machine 1 in the attached figure is only for illustration. Therefore, the tensile testing machine 1 in this embodiment will not be described in detail. It is only necessary to achieve the purpose of testing the tensile strength of bolts.

[0088] In practical application, the operator places the upper clamp 2 and lower clamp 3 on their respective positions on the tensile testing machine 1. The bolts to be tested are then fitted with washers and positioning thread bases and placed between the upper clamp 2 and lower clamp 3. Before the formal testing begins, the force value of the tensile testing machine 1 is "zeroed out" (the placement of the upper clamp 2 and lower clamp 3 on their respective positions on the tensile testing machine 1, the fitting of washers and positioning thread bases to the bolts between the upper clamp 2 and lower clamp 3, the "zeroing out" operation of the force value of the tensile testing machine 1, and the subsequent testing are all existing technologies and will not be elaborated further). The operator then drives the telescopic component to block the opening of the lower clamp 3, and controls the tension component to act on the telescopic component. The tension component blocks the opening of the upper clamp 2. At the same time, under the action of the connecting component, the tension component and the telescopic component provide a closed environment for the bolt tensile test, thereby preventing the test sample from flying everywhere at the moment of bolt tensile test fracture. The flying test sample is confined to the space area enclosed by the upper clamp 2, the lower clamp 3, the tension component, and the telescopic component. This solves the safety hazard problem for the operator and avoids affecting the precision moving parts of the tensile testing machine, thus preventing accelerated wear and affecting the long-term accuracy and lifespan of the equipment.

[0089] During the tensile testing of bolt specimens in the tensile testing machine 1, the tensile component converts the tensile strength testing force of the tensile testing machine 1 into an interception driving force. Under the action of the closing force provided by the connecting component, the tensile component controls the telescopic component to move synchronously along the axial direction of the bolt, thereby obtaining a closed environment for bolt tensile testing. The telescopic component intercepts the tensile fracture test specimen in real time, especially the test specimens that are splashed at the moment of bolt fracture. After the tensile testing of the bolt specimen is completed, the operator controls the connecting component to unlock and drive the telescopic component to reset. During this process, the telescopic component automatically controls the collection of the intercepted test specimens and the unlocking of the collection. This not only intercepts the splashed test specimens and broken bolt specimens from all directions to prevent them from splashing onto the tensile testing machine 1, but also automatically collects the intercepted test specimens and automatically unlocks the collection limit to facilitate the cleaning of the collected test specimens by the operator. Thus, the tensile testing machine not only protects the safety of personnel, but also protects itself and extends its service life. It is multifunctional, simple in structure, and practical. In addition, after the staff controls the telescopic component to reset, they also control the telescopic component to release the obstruction of the opening of the lower clamping body 3 so as to facilitate the removal of the broken local sample bolt and the next tensile strength test of the sample bolt. Similarly, the staff controls the tension component to release the obstruction of the opening of the upper clamping body 2 so as to facilitate the removal of the broken local sample bolt and the next tensile strength test of the sample bolt.

[0090] In a preferred embodiment of the present invention, the tension component includes:

[0091] The tension positioning ring 4 is slidingly mounted on the upper clamping body 2 with damping.

[0092] Pushing protrusion 5, two sets are set and fixedly installed on the outer wall of tension positioning ring 4 to provide space for force application;

[0093] The connecting component is located at the bottom of the tension positioning ring 4 and on the telescopic component; the frictional force between the tension positioning ring 4 and the upper clamping body 2 is greater than the sum of the weights of the tension positioning ring 4 and the pushing protrusion 5.

[0094] Specifically, guide grooves are symmetrically provided on the outer side wall of the upper clamping body 2, and guide sliders are symmetrically fixed on the inner wall of the tension positioning ring 4. The guide sliders correspond one-to-one with the guide grooves, and the guide sliders are slidably disposed in the guide grooves with damping, thereby realizing that the tension positioning ring 4 is slidably disposed on the upper clamping body 2 with damping.

[0095] In practical application, when the test bolt is not inserted or removed, the guide slider is located at the top of the guide groove. That is to say, the tension positioning ring 4 is located above the upper clamping body 2. In other words, the tension positioning ring 4 is also in a state of releasing the obstruction of the opening of the upper clamping body 2. When it is necessary to make the tension positioning ring 4 obstruct the opening of the upper clamping body 2, the operator can drive the tension positioning ring 4 to move the guide slider down along the guide groove by acting on the pushing protrusion 5.

[0096] In a preferred embodiment of the present invention, the telescopic component includes:

[0097] An annular positioning seat 6 is fixedly mounted on the outer wall of the lower clamping body 3;

[0098] The first clearance groove 7 is provided on the annular positioning seat 6 and is connected to the opening of the lower clamping body 3, and is used for the placement and removal of the sample bolt.

[0099] An incomplete annular clearance groove 8 is formed on the annular positioning seat 6 and extends through the top of the annular positioning seat 6;

[0100] An annular clearance groove 9 is formed at the bottom of the annular positioning seat 6 and is interconnected with the first clearance groove 7 and the incomplete annular clearance groove 8.

[0101] The interception module is slidably positioned within the incomplete annular clearance groove 8;

[0102] The collection module is detachably installed within the annular clearance groove 9;

[0103] The gear shift module has two sets, both of which are damped and slidably mounted on the outer wall of the annular positioning seat 6. They are used to block the first clearance groove 7 while providing a supplementary interception surface for the interception module.

[0104] The connecting component is located at the bottom of the tension positioning ring 4, on the interception module and the gear module; the interception module controls the collection module.

[0105] Specifically, the structure of the interception module is not specifically limited. In a preferred embodiment of the present invention, the interception module includes:

[0106] The incomplete annular plate 10 is damped and slidably disposed on the inner wall of the incomplete annular clearance groove 8.

[0107] The incomplete annular frame 11 is fixedly mounted on the incomplete annular plate 10 facing the lower clamping body 3, and the inner diameter of the top is smaller than the inner diameter of the bottom.

[0108] The interception buffer 12 is detachably mounted on the incomplete ring frame 11 and has an inverted V-shaped cross section for intercepting splashed test samples.

[0109] The vibration interception unit is set between the incomplete annular clearance groove 8 and the incomplete annular plate 10, and is used to actuate the interception buffer 12.

[0110] The connecting components are located at the bottom of the tension positioning ring 4, the top of the incomplete annular plate 10, and the stop module; the incomplete annular plate 10 controls the collection module.

[0111] The type of intercepting buffer 12 described in this embodiment is not specifically limited, but EVA foam is preferred, as long as it can achieve the purpose of intercepting the splashed test sample;

[0112] The thickness of the EVA foam cotton is selected based on the actual debugging and is not specifically limited here.

[0113] More specifically, the structure of the vibration interception unit is not specifically limited. In a preferred embodiment of the present invention, the vibration interception unit includes:

[0114] The first protrusion 13 is evenly distributed on the inner wall of the incomplete annular clearance groove 8 on the side away from the intercepting buffer 12.

[0115] Vibration drive rods 14 are evenly distributed on the incomplete annular plate 10, and are elastically slidably disposed on the incomplete annular plate 10.

[0116] The first protrusions 13 are all located on the moving trajectory of the vibration drive rod 14; the side of the first protrusion 13 facing the vibration drive rod 14 is set with an arc surface; the length of the vibration drive rod 14 located on the incomplete annular plate 10 is arranged in a stepped manner from top to bottom.

[0117] When there is no interaction force between the first protrusion 13 and the vibration drive rod 14, the vibration drive rod 14 and the intercepting buffer 12 are both in a state of contact without interaction force.

[0118] In detail, the sliding connection between the vibration drive rod 14 and the incomplete annular plate 10 is elastically connected by a spring, thereby realizing that the vibration drive rod 14 is elastically slidably set on the incomplete annular plate 10. It should be noted that the magnitude of the elastic force of the spring at the sliding connection between the vibration drive rod 14 and the incomplete annular plate 10 is selected and installed after adjustment according to the actual application.

[0119] Specifically, the structure of the collection module is not specifically limited. In this embodiment, the preferred collection module includes:

[0120] The annular collection box 15 is slidingly mounted in the annular clearance groove 9 with damping.

[0121] The locking unit, with at least two sets, is located between the side wall of the annular positioning seat 6 and the incomplete annular plate 10, for automatic locking and unlocking of the annular collection box 15.

[0122] When the incomplete annular plate 10 is completely located within the incomplete annular clearance groove 8, the outer wall of the incomplete annular plate 10 and the inner wall of the outer wall of the annular collection box 15 are in a sliding fit, and the bottom of the incomplete annular plate 10 is in contact with the inner wall of the annular collection box 15.

[0123] Furthermore, to facilitate the retrieval and placement of the annular collection box 15, symmetrical gripper clearance grooves are provided on the bottom of the annular collection box 15. Each gripper clearance groove is equipped with a damped rotating handle 17, thereby providing a force application position and space for the retrieval and placement of the annular collection box 15.

[0124] More specifically, the structure of the engaging unit is not specifically limited. In a preferred embodiment of the present invention, the engaging unit includes:

[0125] The snap-fit ​​mounting tube 18 is fixedly installed on the outer wall of the annular positioning seat 6;

[0126] The locking clearance hole 19 is opened on the outer wall of the annular positioning seat 6 and corresponds to the locking mounting tube 18.

[0127] The engaging hole 22, corresponding to the engaging clearance hole 19, is provided on the outer wall of the annular collection box 15.

[0128] The engaging guide plate 20 is damped and slidably disposed within the engaging mounting tube 18;

[0129] The connecting rod is fixedly mounted on the engaging guide plate 20;

[0130] The locking ball 21 is fixedly mounted on the connecting rod and slidably mounted within the locking clearance hole 19;

[0131] The reset spring 23 is disposed between the engagement guide plate 20 and the inner wall of the engagement mounting tube 18;

[0132] The engaging clearance hole 19 and the annular clearance groove 9 are interconnected.

[0133] When the annular collection box 15 is placed in the annular clearance groove 9, and the bottom of the incomplete annular plate 10 is in contact with the inner wall of the annular collection box 15, the locking clearance hole 19 and the locking hole 22 are on the same axis as the locking ball 21. The locking ball 21 has an interaction force with the outer wall of the incomplete annular plate 10. The return spring 23 is in a compressed state. The maximum distance between the locking hole 22 and the side wall of the incomplete annular plate 10 is less than the distance between the center of the locking ball 21 and the side wall of the incomplete annular plate 10.

[0134] When the annular collection box 15 is placed in the annular clearance groove 9 and the incomplete annular plate 10 and the annular collection box 15 are not in contact with each other, the locking clearance hole 19 and the locking hole 22 are on the same axis as the locking ball 21. The locking ball 21 has no interaction force with the outer wall of the incomplete annular plate 10. The return spring 23 is in the natural state. The minimum distance between the locking hole 22 and the side wall of the incomplete annular plate 10 is greater than the distance between the center of the locking ball 21 and the side wall of the incomplete annular plate 10.

[0135] Furthermore, to facilitate the positioning and installation of the annular collection box 15, a positioning groove is provided at the bottom of the annular positioning seat 6 near the outer wall of the annular collection box 15, with three sets of grooves; a positioning block 16 corresponding to the positioning groove is fixedly installed on the annular collection box 15; thus, the positioning and installation of the annular collection box 15 is achieved through the cooperation of the positioning block 16 and the positioning groove, while also facilitating more precise alignment of the locking clearance hole 19 and the locking hole 22.

[0136] Specifically, the structure of the gear shift module is not specifically limited. In this embodiment, the preferred gear shift module includes:

[0137] The arc-shaped stop seat 24 is slidingly mounted on the outer wall of the annular positioning seat 6 with damping.

[0138] An arc-shaped groove 26 is formed on an arc-shaped stop seat 24;

[0139] The stop arc plate 27 is damped and slidably disposed within the arc groove 26;

[0140] The stop arc bracket 28 is fixedly mounted on the stop arc plate 27 facing the annular positioning seat 6;

[0141] The second interceptor buffer 29 is detachably mounted on the baffle arc frame 28, and is used to shield the first clearance groove 7 while providing a supplementary interception surface for the splash test sample.

[0142] The stop vibration unit is located between the arc groove 26 and the stop arc plate 27, and is used to actuate the second intercept buffer 29.

[0143] The connecting components are located at the bottom of the tension positioning ring 4, the top of the incomplete annular plate 10, and the top of the stop arc plate 27; the outer diameter of the tension positioning ring 4 is greater than or equal to the outer diameter of the stop arc plate 27.

[0144] In detail, a movable slide groove is provided on the lower side wall of the arc-shaped stop seat 24 facing the annular positioning seat 6. An arc-shaped guide block 25 corresponding to the movable slide groove is fixedly provided on the outer side wall of the annular positioning seat 6. The movable slide groove slides on the arc-shaped guide block 25 with damping.

[0145] Furthermore, to prevent the arc-shaped stop seat 24 from sliding and falling off, limit plates are fixedly provided at both ends of the arc-shaped guide block 25.

[0146] The type of intercepting buffer 29 described in this embodiment is not specifically limited, but EVA foam is preferred, as long as it can achieve the purpose of intercepting the splashed test sample;

[0147] The thickness of the EVA foam cotton is selected based on the actual debugging and is not specifically limited here.

[0148] More specifically, the structure of the gear vibration unit is not specifically limited. In a preferred embodiment of the present invention, the gear vibration unit includes:

[0149] The second protrusion 30 is evenly distributed on the inner wall of the arc-shaped groove 26 on the side away from the second interceptor buffer 29;

[0150] Vibration telescopic rods 31 are evenly distributed on the stop arc plate 27, and are all elastically slidably set on the stop arc plate 27.

[0151] The second protrusions 30 are all located on the moving trajectory of the vibrating telescopic rod 31; the side of the second protrusion 30 facing the vibrating telescopic rod 31 is set with an arc surface;

[0152] When there is no interaction force between the second protrusion 30 and the vibration telescopic rod 31, the vibration telescopic rod 31 and the second intercepting buffer 29 are both in a state of contact without interaction force.

[0153] In detail, the sliding connection between the vibration telescopic rod 31 and the stop arc plate 27 is elastically connected by a spring, thereby realizing that the vibration telescopic rod 31 is elastically slidably set on the stop arc plate 27. It should also be noted that the elastic force of the spring at the sliding connection between the vibration telescopic rod 31 and the stop arc plate 27 is selected and installed after adjustment according to actual application.

[0154] Furthermore, to facilitate the reset of the first intercepting buffer 12 and the second intercepting buffer 29, pull-down protrusions 32 are provided on both the stop arc plate 27 and the incomplete annular plate 10, thereby providing the operator with an operating position and space.

[0155] In practical application, when the staff places the sample bolt to be tested on the upper clamping body 2 and the lower clamping body 3, the staff can immediately follow and drive a set of arc-shaped stop seats 24 to move in one direction or two sets of arc-shaped stop seats 24 to move towards each other, causing the stop arc plate 27 and the second intercepting buffer 29 to slide along the arc-shaped guide block 25, which blocks the first clearance groove 7, that is, blocks the opening of the lower clamping body 3, making up for the missing intercepting surface of the incomplete annular plate 10 and the first intercepting buffer 12, and effectively preventing the lower end of the broken sample bolt from falling from the opening of the lower clamping body 3 and hitting the tensile testing machine 1 at the moment of breakage;

[0156] Subsequently, the operator applies force to push the protrusion 5, which drives the tension positioning ring 4 to move the guide slider down along the guide groove to the bottom wall of the guide groove. The tension positioning ring 4 is in a state of blocking the opening of the upper clamp 2, which also effectively prevents the upper end of the broken sample bolt from falling from the opening of the upper clamp 2 and hitting the tensile testing machine 1 at the moment of breakage. At the same time, the connecting components provide a closing force for the closed environment of the bolt tensile test, so that the tension positioning ring 4, the incomplete annular plate 10, the first intercepting buffer 12, the stop arc plate 27, and the second intercepting buffer 29 together form a closed space, surrounding the sample bolt to be tested. The force value of the tensile testing machine 1 is "zeroed and tare" before it is started to test the tensile strength of the bolt sample. At this time, as the guide slider moves down along the guide groove to the bottom wall, the upper clamping body 2 moves upward, simultaneously driving the tensile positioning ring 4 upward via the guide slider. Under the action of the connecting components, the incomplete annular plate 10, the first intercepting buffer 12, the stop arc plate 27, and the second intercepting buffer 29 move upward, maintaining a closed space. This confines both the splash test sample during the tensile testing process and the tensile fracture test sample generated at the moment of bolt breakage. Within the enclosed space, the system prevents splashing of test samples from reaching workers and also avoids splashing onto the tensile testing machine 1 from affecting its service life. In other words, the intercepting buffer 12 and intercepting buffer 29 not only block the splashing test samples but also effectively prevent them from bouncing back or splashing again. This effectively protects workers and the precision sensors, guide rails, and optical components inside the tensile testing machine 1 from scratches or impacts. Furthermore, the use of EVA foam for the intercepting buffer 12 and intercepting buffer 29 not only reduces costs but also makes them easy to process and highly practical. At this time, the annular collection box 15 is placed in the annular clearance groove 9, and the incomplete annular plate 10 and the annular collection box 15 are not in contact with each other. Then, the locking clearance hole 19 and the locking hole 22 are on the same axis as the locking ball 21. There is no interaction force between the locking ball 21 and the outer wall of the incomplete annular plate 10. The return spring 23 is in the natural state. The minimum distance between the locking hole 22 and the side wall of the incomplete annular plate 10 is greater than the distance between the center of the locking ball 21 and the side wall of the incomplete annular plate 10. That is to say, at this time, the locking ball 21 is stably locked in the locking hole 22, and the annular collection box 15 is in a state of firmly sealing the annular clearance groove 9.

[0157] After the tensile test of the sample bolts is completed, the staff releases the closing force of the connecting parts by applying force to the pull-down protrusion 32, causing the drive buffer 12 and the second buffer 29 to move down and reset, respectively, following the incomplete annular plate 10 and the stop arc plate 27. During the downward reset process, the vibration drive rod 14 acts on the first protrusion 13 in sequence, thus vibrating and impacting the first buffer 12. The inverted V-shaped cross-section of the first buffer 12 makes it easier for the first buffer 12 to be impacted by the vibration. The intercepted bolt test sample falls into the annular collection box 15 for collection; similarly, the vibrating telescopic rod 31 acts sequentially on the second protrusion 30, thus vibratingly impacting the second intercepting buffer 29. Since one side of the second intercepting buffer 29 is the vibrating telescopic rod 31, and the other side is the outer wall of the annular positioning seat 6 or the first clearance groove 7, the setting of the vibrating telescopic rod 31 can vibrately impact the second intercepting buffer 29 located in the area of ​​the first clearance groove 7, while avoiding vibration from the outer wall of the annular positioning seat 6. The problem of movement interference caused by the direct hard compression of the retractable rod 31 against the outer wall of the annular positioning seat 6 is addressed by vibrating the buffer 29 to push the intercepted test sample onto the buffer 29 into the annular collection box 15. Both the buffer 12 and the buffer 29 gradually approach the annular collection box 15 before undergoing localized vibrational impact, further increasing the probability of the test sample falling into the annular collection box 15. It should be noted that the vibration force on the buffer 12 and the buffer 29 is selected and adjusted according to actual application before installation to avoid excessive impact force during the test sample cleaning process, which would cause the intercepted test sample to fall onto the clamping body 3 and not fall into the annular collection box 15 for automatic collection. The vibration force is only to assist in the falling of the intercepted test sample. If too much test sample remains on the buffer 12 and the buffer 29, the operator can replace the buffer 12 and the buffer 29.Subsequently, when the annular collection box 15 is placed within the annular clearance groove 9, and the bottom of the incomplete annular plate 10 is in contact with the inner wall of the annular collection box 15, the locking clearance hole 19 and the locking hole 22 are on the same axis as the locking ball 21. The locking ball 21 interacts with the outer wall of the incomplete annular plate 10, and the return spring 23 is compressed. The maximum distance between the locking hole 22 and the side wall of the incomplete annular plate 10 is less than the distance between the center of the locking ball 21 and the side wall of the incomplete annular plate 10. In other words, at this time, the side wall of the annular collection box 15 acts on the spherical surface of the locking ball 21 closest to the side wall of the incomplete annular plate 10. This means that the incomplete annular plate 10 automatically releases the restriction on the annular collection box 15. When it is necessary to remove the annular collection box 15, the operator only needs to remove it first. After the lower clamping body 3 is engaged, pulling the pick-and-place handle 17 will drive the annular collection box 15 to squeeze the locking ball 21 and the return spring 23, causing the locking ball 21 and the locking hole 22 to disengage from each other, and then the annular collection box 15 can be easily and simply removed. Similarly, the placement of the annular collection box 15 is also done by installing the annular collection box 15 along the annular relief groove 9. After squeezing the spherical surface of the locking ball 21 and the return spring 23, the locking ball 21 is locked back into the locking hole 22, realizing the automatic locking of the annular collection box 15. No complex external mechanism is required. The unlocking and locking of the annular collection box 15 can be controlled simply by the incomplete annular plate 10. At this time, the sum of the supporting force of the locking ball 21 on the annular collection box 15 and the sliding friction between the annular collection box 15 and the annular relief groove 9 is greater than the weight of the annular collection box 15.

[0158] In a preferred embodiment of the present invention, the connecting component includes:

[0159] The upper magnetic absorbing piece 33 is embedded in the inner wall of the bottom of the tension positioning ring 4;

[0160] The lower magnetic absorbing piece 34 is embedded in the top of the incomplete annular plate 10 and the top of the stop arc plate 27, and is attracted to the upper magnetic absorbing piece 33.

[0161] The lower magnetic absorbing piece 34 is located directly below the upper magnetic absorbing piece 33.

[0162] In practical applications, this embodiment uses the mutual attraction of the upper magnetic plate 33 and the lower magnetic plate 34 to easily achieve the closed space formed by the tension positioning ring 4, the incomplete annular plate 10, the first intercepting buffer 12, the stop arc plate 27, and the second intercepting buffer 29. It also facilitates the disconnection of the incomplete annular plate 10, the first intercepting buffer 12, the stop arc plate 27, and the second intercepting buffer 29 from the tension positioning ring 4.

[0163] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A bolt strength coefficient testing device, the device comprising a tensile testing machine (1), the tensile testing machine (1) comprising a pair of upper clamping parts (2) and lower clamping parts (3) that are matched in position; characterized in that, The device also includes: The tensile component is mounted on the upper clamping body (2) and is used to convert the tensile strength detection force of the tensile testing machine (1) into an interception driving force; The telescopic component is set on the lower clamping body (3) and is used for real-time interception and automatic collection of tensile fracture test specimens; Connecting components, located on the tensile and telescopic components, are used to provide a closing force for the closed environment of bolt tensile testing; The tension component controls the telescopic component; The telescopic component includes: An annular positioning seat (6) is fixedly installed on the outer wall of the lower clamping body (3); The first clearance groove (7) is opened on the annular positioning seat (6) and is connected to the opening of the lower clamping body (3) for taking and putting away the sample bolts. An incomplete annular clearance groove (8) is provided on the annular positioning seat (6) and extends through the top of the annular positioning seat (6); An annular clearance groove (9) is provided at the bottom of the annular positioning seat (6) and is connected to the first clearance groove (7) and the incomplete annular clearance groove (8); The interception module is slidably set in the incomplete annular clearance groove (8); The collection module is detachably installed in the annular clearance groove (9); The gear module has two sets of settings, both of which are damped and slidably set on the outer wall of the annular positioning seat (6) to block the first clearance groove (7) while providing a supplementary interception surface for the interception module; The connecting component is located at the bottom of the tension positioning ring (4), on the interception module and the stop module; the interception module controls the collection module; The interception module includes: An incomplete annular plate (10) with damping is slidably disposed on the inner wall of an incomplete annular clearance groove (8); An incomplete ring frame (11) is fixedly mounted on an incomplete ring plate (10) facing the lower clamping body (3), and the inner diameter of the top is smaller than the inner diameter of the bottom. The first interception buffer (12) is detachably mounted on the incomplete ring frame (11) and has an inverted V-shaped cross section for intercepting splashed test samples; The vibration interception unit is located between the incomplete annular clearance groove (8) and the incomplete annular plate (10) and is used to actuate the first interception buffer (12). The connecting component is located at the bottom of the tension positioning ring (4), the top of the incomplete annular plate (10), and the stop module; the incomplete annular plate (10) controls the collection module; The collection module includes: The annular collection box (15) is slidingly mounted in the annular clearance groove (9) with damping. The locking unit, with at least two sets, is located between the side wall of the annular positioning seat (6) and the incomplete annular plate (10) for automatic locking and unlocking of the annular collection box (15); When the incomplete annular plate (10) is completely located within the incomplete annular clearance groove (8), the outer wall of the incomplete annular plate (10) and the inner wall of the outer wall of the annular collection box (15) are in a sliding fit, and the bottom of the incomplete annular plate (10) is in contact with the inner wall of the annular collection box (15). The engagement unit includes: The snap-fit ​​mounting tube (18) is fixedly installed on the outer wall of the annular positioning seat (6); The locking clearance hole (19) is opened on the outer wall of the annular positioning seat (6) and corresponds to the locking mounting tube (18); The engaging hole (22) corresponds to the engaging clearance hole (19) and is opened on the outer wall of the annular collection box (15); The engaging guide plate (20) is damped and slidably disposed inside the engaging mounting tube (18); The connecting rod is fixedly mounted on the engaging guide plate (20); The locking ball (21) is fixedly mounted on the connecting rod and slidably mounted in the locking clearance hole (19); A reset spring (23) is disposed between the engagement guide plate (20) and the inner wall of the engagement mounting tube (18); The engaging clearance hole (19) and the annular clearance groove (9) are interconnected; When the annular collection box (15) is placed in the annular clearance groove (9), and the bottom of the incomplete annular plate (10) is in contact with the inner wall of the annular collection box (15), the locking clearance hole (19) and the locking hole (22) are on the same axis as the locking ball (21), the locking ball (21) has an interaction force with the outer wall of the incomplete annular plate (10), the return spring (23) is in a compressed state, and the maximum distance between the locking hole (22) and the side wall of the incomplete annular plate (10) is less than the distance between the center of the locking ball (21) and the side wall of the incomplete annular plate (10); When the annular collection box (15) is placed in the annular clearance groove (9) and the incomplete annular plate (10) and the annular collection box (15) are not in contact with each other, the locking clearance hole (19) and the locking hole (22) are on the same axis as the locking ball (21), the locking ball (21) and the outer wall of the incomplete annular plate (10) have no interaction force, the reset spring (23) is in the natural state, and the minimum distance between the locking hole (22) and the side wall of the incomplete annular plate (10) is greater than the distance between the center of the locking ball (21) and the side wall of the incomplete annular plate (10).

2. The bolt strength coefficient testing equipment according to claim 1, characterized in that, The tension component includes: A tension positioning ring (4) with damping is mounted on the upper clamping body (2); Push the first protrusion (5), two sets are set and fixed on the outer wall of the tension positioning ring (4); The connecting component is located at the bottom of the tension positioning ring (4) and on the telescopic component; the friction between the tension positioning ring (4) and the upper clamping body (2) is greater than the sum of the weights of the tension positioning ring (4) and the pushing protrusion (5).

3. The bolt strength coefficient testing equipment according to claim 1, characterized in that, The vibration interception unit includes: The first protrusion (13) is evenly distributed on the inner wall of the incomplete annular clearance groove (8); Vibration drive rods (14) are evenly distributed on the incomplete annular plate (10) and are elastically slidably disposed on the incomplete annular plate (10); Among them, the first protrusion (13) is located on the moving trajectory of the vibration drive rod (14); the side of the first protrusion (13) facing the vibration drive rod (14) is set with an arc surface; the length of the vibration drive rod (14) located on the incomplete annular plate (10) is arranged in a stepped manner from top to bottom. When the first protrusion (13) and the vibration drive rod (14) are in a state of no interaction force, the vibration drive rod (14) and the first interception buffer (12) are both in a state of no interaction force.

4. The bolt strength coefficient testing equipment according to claim 2, characterized in that, The gear shift module includes: The arc-shaped stop seat (24) is damped and slidably mounted on the outer wall of the annular positioning seat (6); An arc-shaped groove (26) is formed on an arc-shaped stop seat (24); The stop arc plate (27) is damped and slidably disposed in the arc groove (26); The stop arc bracket (28) is fixedly mounted on the stop arc plate (27) facing the annular positioning seat (6); The second interceptor buffer (29) is detachably mounted on the stop arc frame (28) to shield the first clearance groove (7) while providing a supplementary interception surface for the splash test sample; The gear vibration unit is located between the arc groove (26) and the gear arc plate (27) and is used to actuate the second intercept buffer (29). The connecting component is located at the bottom of the tension positioning ring (4), the top of the incomplete annular plate (10), and the top of the stop arc plate (27); the outer diameter of the tension positioning ring (4) is greater than or equal to the outer diameter of the stop arc plate (27).

5. The bolt strength coefficient testing equipment according to claim 4, characterized in that, The gear vibration unit includes: The second protrusion (30) is evenly distributed on the inner wall of the arc-shaped groove (26) on the side away from the second interceptor buffer (29); Vibration telescopic rods (31) are evenly distributed on the stop arc plate (27) and are elastically slidably set on the stop arc plate (27); Among them, the second protrusion (30) is located on the moving trajectory of the vibrating telescopic rod (31); the side of the second protrusion (30) facing the vibrating telescopic rod (31) is set with an arc surface; When the second protrusion (30) and the vibration telescopic rod (31) are in a state of no interaction force, the vibration telescopic rod (31) and the second intercepting buffer (29) are both in a state of no interaction force.

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